2 * collectd - src/load.c
3 * Copyright (C) 2005,2006 Florian octo Forster
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License as published by the
7 * Free Software Foundation; only version 2 of the License is applicable.
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
14 * You should have received a copy of the GNU General Public License along
15 * with this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
19 * Florian octo Forster <octo at verplant.org>
26 #if defined(HAVE_GETLOADAVG) || defined(KERNEL_LINUX) || defined(HAVE_LIBSTATGRAB)
27 # define LOAD_HAVE_READ 1
29 # define LOAD_HAVE_READ 0
32 #ifdef HAVE_SYS_LOADAVG_H
33 #include <sys/loadavg.h>
36 #ifdef HAVE_GETLOADAVG
37 #if !defined(LOADAVG_1MIN) || !defined(LOADAVG_5MIN) || !defined(LOADAVG_15MIN)
38 #define LOADAVG_1MIN 0
39 #define LOADAVG_5MIN 1
40 #define LOADAVG_15MIN 2
42 #endif /* defined(HAVE_GETLOADAVG) */
45 static void load_submit (gauge_t snum, gauge_t mnum, gauge_t lnum)
48 value_list_t vl = VALUE_LIST_INIT;
50 values[0].gauge = snum;
51 values[1].gauge = mnum;
52 values[2].gauge = lnum;
55 vl.values_len = STATIC_ARRAY_SIZE (values);
56 vl.time = time (NULL);
57 strcpy (vl.host, hostname_g);
58 strcpy (vl.plugin, "load");
60 plugin_dispatch_values ("load", &vl);
63 static int load_read (void)
65 #if defined(HAVE_GETLOADAVG)
68 if (getloadavg (load, 3) == 3)
69 load_submit (load[LOADAVG_1MIN], load[LOADAVG_5MIN], load[LOADAVG_15MIN]);
73 WARNING ("load: getloadavg failed: %s",
74 sstrerror (errno, errbuf, sizeof (errbuf)));
76 /* #endif HAVE_GETLOADAVG */
78 #elif defined(KERNEL_LINUX)
79 gauge_t snum, mnum, lnum;
86 if ((loadavg = fopen ("/proc/loadavg", "r")) == NULL)
89 WARNING ("load: fopen: %s",
90 sstrerror (errno, errbuf, sizeof (errbuf)));
94 if (fgets (buffer, 16, loadavg) == NULL)
97 WARNING ("load: fgets: %s",
98 sstrerror (errno, errbuf, sizeof (errbuf)));
103 if (fclose (loadavg))
106 WARNING ("load: fclose: %s",
107 sstrerror (errno, errbuf, sizeof (errbuf)));
110 numfields = strsplit (buffer, fields, 8);
115 snum = atof (fields[0]);
116 mnum = atof (fields[1]);
117 lnum = atof (fields[2]);
119 load_submit (snum, mnum, lnum);
120 /* #endif KERNEL_LINUX */
122 #elif defined(HAVE_LIBSTATGRAB)
123 gauge_t snum, mnum, lnum;
126 if ((ls = sg_get_load_stats ()) == NULL)
133 load_submit (snum, mnum, lnum);
134 #endif /* HAVE_LIBSTATGRAB */
138 #endif /* LOAD_HAVE_READ */
140 void module_register (void)
143 plugin_register_read ("load", load_read);
145 } /* void module_register */